Question

$\huge{\textbf{\textsf{{\color{navy}{Qu}}{\purple{est}}{\pink{ion}} {\color{pink}{:}}}}}$
Give examples for the situations where work done is positive and work done is negative.

Kindly spamed answers reported ✘✘✘​

Answer 1

Explanation:

Positive work -

1. Pushing a box through a distance.

2. Lift a book through a height.

Negative work -

1. Work done by force of gravity on an object when lifted.

2. Work done by friction when we walk.

Answer 2

${\large\orange{\mathbb\fcolorbox{pink}{maroon}{●ANSWER●:-}}}$

${\pmb{\underline{\sf{Example \: for \: Positive \: Work \: Done !!}}}}$

☆ When a body moves in horizontal Surface, force and displacement are act on a Forward path. The work is done in this Case is Known as the Positive Work done.

${\pmb{\underline{\sf{Example \: for \: negative \: Work \: Done !!}}}}$

☆ The rocket is going to the Upward direction while the work done by Rocket towards the earth Surface is on the Downward direction of the earth. Earth Also make force on this rocket in the downward direction (Which is known as gravity) and gravity are the displacement of the rocket both are on the opposite direction. So that while in this Situation work done by this Rocket it is Known as Negative Work done

★ For Diagram refer to the Attachment!!

___________________________________

$\sf\green{Extra \: for \: Knowledge \: ..}$

Q) What is +ve Work done?

A) When the direction of force is Same as the displacement of Object.

Q) What is -ve Work done?

A) When direction of force is Opposite to the direction of Displacement.

______________________________

$\sf\blue{hope \: this \: helps \: you!! \: }$

@Mahor2111

___________♬♩♪♩ ♩♪♩♬__________